This ammunition revolutionizes subsonic hunting in the 7.62 x 39mm caliber. In the past, the terminal ballistics of subsonic ammunition, including the 7.62 x 39mm, have been limited in respect to knock down power and wound channel size by projectiles which did not expand. Engel Ballistic Research’s new 7.62 x 39mm "Ghost" Subsonic Expander maximizes the transfer of energy on live targets exponentially by utilizing a projectile which dramatically and rapidly expands on impact with soft tissue creating a large cavitation while at the same time cutting through live tissue in a way similar to a broad head on an arrow.